93
Prestigio Cavaliere 141
Technical Service Manual
7. Maintenance Diagnostics
7.3 Error Codes :
Following is a list of error codes in sequent display on the PIO debug board. System
Soft BIOS:
Code
Description
27H
RAM Quick Sizing
28H
Protected mode entered safely
29H
RAM test completed
2AH
Protected mode exit successful
2BH Setup
Shadow
2CH
Going To Initialize Video
2DH
Search For Monochrome Adapter
2EH
Search For Color Adapter
2FH
Signon messages displayed
30H
Special init of keyboard ctlr
31H
Test If Keyboard Present
32H
Test Keyboard Interrupt
33H
Test Keyboard Command Byte
34H
TEST, Blank and count all RAM
35H
Protected mode entered safely (2).
36H
RAM test complete
37H
Protected mode exit successful
38H
Update OUTPUT port
39H
Setup Cache Controller
3AH
Test If 18.2Hz Periodic Working
3BH
Test for RTC ticking
3CH
Initialize the hardware vectors
3DH
Search and Init the Mouse
Code
Description
10H
Some Type Of Long Reset
11H
Turn off FASTA20 for POST
12H
Signal Power On Reset
13H
Initialize the Chipset
14H
Search For ISA Bus VGA Adapter
15H Reset
Counter/Timer
16H
User register config through CMOS
17H Size
Memory
18H
Dispatch To RAM Test
19H
Checksum the ROM
1AH Reset
PIC's
1BH Initialize
Video
Adapter(s)
1CH
Initialize Video (6845 Regs)
1DH Initialize
Color
Adapter
1EH Initialize
Monochrome
Adapter
1FH
Test 8237A Page Registers
20H Test
Keyboard
21H
Test Keyboard Controller
22H
Check If CMOS Ram Valid
23H
Test Battery Fail & CMOS X-SUM
24H
Test the DMA controllers
25H
Initialize 8237A Controller
26H Initialize
Int
Vectors